Moistureproof double-sided circuit board
By employing an anti-loosening mechanism that uses plug-in rods and gears to mesh on the circuit board, along with the magnetic connection of a magnet, the problem of loose connections on the circuit board under external impact or vibration is solved. This achieves a stable connection and sealed protection between the protective cover and the support base, and improves moisture resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANYUAN INTELLIGENT TECHNOLOGY (HUAIAN) CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-19
AI Technical Summary
In the prior art, when the circuit board is subjected to external impact or long-term vibration, the plug-in structure between the protective cover and the protective cap, and the slot connection structure between the board and the protective cover are prone to loosening, affecting the moisture-proof effect.
The anti-loosening mechanism employs a plug-in rod and gear meshing, combined with the magnetic connection of the magnet and the sealing protection of the sealing ring, to ensure a stable connection and seal between the protective cover and the support base. The synchronous rotation of the gear and the positioning component reduces loosening, the attraction of the magnet maintains a tight connection, and the sealing ring provides additional sealing protection.
This effectively reduces the loosening of the connection between the protective cover and the support base, ensures the moisture protection effect of the circuit board, and improves the sealing and stability.
Smart Images

Figure CN224265186U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board technology, and in particular to a moisture-proof double-sided circuit board. Background Technology
[0002] A double-sided circuit board is a printed circuit board with conductive copper layers on both sides. The circuits on both sides are connected by through holes (small holes), which allows double-sided circuit boards to achieve more complex circuit layouts in a limited space without significantly increasing the size of the circuit board.
[0003] For example, Chinese patent CN216145526U discloses a double-sided panel with waterproof and moisture-proof functions, including a protective cover, a panel body and a protective cap. The protective cover has a groove on one side and a blind hole on the protective cover. The panel body is located inside the groove on the protective cover and has a slot on the panel body. The protective cap has a through hole and one end of the protective cap is located inside the protective cover.
[0004] Although the aforementioned patents have solved the problem of poor waterproof performance of circuit boards by using protective covers and protective caps, when the circuit board is subjected to external impact or long-term vibration, the plug-in structure between the protective cover and the protective cap, and the slot connection structure between the board and the protective cover may become loose, affecting the overall moisture-proof effect. Utility Model Content
[0005] The purpose of this invention is to solve the problem in the prior art that when the circuit board is subjected to external impact or long-term vibration, the plug-in structure between the protective cover and the protective cap, and the slot connection structure between the board and the protective cover will become loose, affecting the overall moisture-proof effect. Therefore, a moisture-proof double-sided circuit board is proposed.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a moisture-proof double-sided circuit board, comprising a circuit board body, a second connector rod, a support seat engaged on one side of the circuit board body, an anti-loosening mechanism provided on the top of the support seat, the anti-loosening mechanism comprising a reinforcing plate, a gear, and a first connector rod, the first connector rod being inserted through the reinforcing plate, the first connector rod being slidably connected to a limiting component, one side of the limiting component being fixedly connected to the support seat, and the first connector rod penetrating the limiting component. The second connecting rod is slidably connected to the first connecting rod and the reinforcing plate. A protective cover is fixedly connected to one side of the reinforcing plate. A rack is fixedly connected to one end of the first connecting rod. One side of the rack of the second connecting rod meshes with a gear. A connecting rod is inserted through the inside of the gear of the second connecting rod. The outer ring surface of the connecting rod of the second connecting rod is fixedly connected to the gear. One end of the gear of the second connecting rod is rotatably connected to the protective cover. The other end of the gear of the second connecting rod passes through the side wall of the protective cover and is fixedly connected to a positioning component. Positioning holes are opened on one side of both the positioning component and the protective cover.
[0007] Preferably, there are two pinion rods, one of which is slidably connected to the inner wall of the protective cover, and the other pinion rod has a placement plate slidably connected to one side, with the placement plate fixedly connected to the inner wall of the protective cover on one side.
[0008] Preferably, one side of the second plug rod is engaged with the circuit board body, one side of the second plug rod is engaged with the limit block, and one side of the limit block is rotatably connected to the reinforcing plate.
[0009] Preferably, a magnet block 1 is fixedly connected to one side of the reinforcing plate of the second plug rod, and a magnet block 2 is magnetically connected to one side of the magnet block 1 of the second plug rod, with the magnet block 2 embedded in the support base.
[0010] Preferably, a plug block is fixedly connected to one side of the placement plate of the plug rod 2, and one side of the plug block of the plug rod 2 is plugged into the support base.
[0011] Preferably, a sealing ring is fixedly connected to the inner wall of the second protective cover of the plug rod, and one side of the sealing ring of the second plug rod is engaged with the support base. Both the second protective cover of the plug rod and the support base are provided with a protective coating.
[0012] Preferably, a second plug-in rod is fixedly connected to the top of the inner cavity of the protective cover of the second plug-in rod, and one end of the second plug-in rod is plugged into the support base.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, the rack and gear mesh, the positioning component and the connecting rod are fixedly connected, the positioning component is rotated, the connecting rod and the gear rotate synchronously with the positioning component, driving the two racks to move, so that the first insertion rod moves with the rack. Through the connection of the first insertion rod and the limiting component, the connection between the protective cover and the support base can be strengthened. By limiting the positioning component, the loosening of the protective cover and the support base during use can be reduced, ensuring the overall moisture-proof effect.
[0015] 2. In this utility model, the plug-in block and the second plug-in rod are plugged into the support base, moving the protective cover closer to the support base. The bottom of the plug-in block and the second plug-in rod are plugged into the support base. The plug-in block and the second plug-in rod can guide the installation of the protective cover. One side of the first magnet block is magnetically connected to the second magnet block, ensuring a tight connection between the protective cover and the support base, thereby reducing the positional offset of the protective cover and the support base during installation. The sealing ring can seal and protect the connection between the protective cover and the support base, ensuring the sealing performance after reinstallation. Attached Figure Description
[0016] Figure 1 A three-dimensional structural diagram of a moisture-proof double-sided circuit board is provided for this utility model;
[0017] Figure 2This utility model provides a schematic diagram of the sealing ring structure installation for a moisture-proof double-sided circuit board;
[0018] Figure 3 This utility model provides a schematic diagram of the installation of a limiting component structure for a moisture-proof double-sided circuit board;
[0019] Figure 4 This utility model provides a schematic diagram of the installation of a positioning component structure for a moisture-proof double-sided circuit board;
[0020] Figure 5 This utility model provides a schematic diagram of the installation of a plug-in block structure for a moisture-proof double-sided circuit board.
[0021] Legend: 1. Protective cover; 2. Support base; 3. Circuit board body; 4. Sealing ring; 5. Rack; 6. Limiting component; 7. Reinforcing plate; 8. Magnet block one; 9. Placement plate; 10. Gear; 11. Positioning component; 12. Connecting rod; 13. Limiting block; 14. Insertion block; 15. Magnet block two; 16. Insertion rod one; 17. Insertion rod two. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Example 1: Refer to Figures 1-4As shown: A moisture-proof double-sided circuit board includes a circuit board body 3. A support base 2 is engaged on one side of the circuit board body 3. An anti-loosening mechanism is provided on the top of the support base 2. The anti-loosening mechanism includes a reinforcing plate 7, a gear 10, and a plug-in rod 16. The plug-in rod 16 is inserted through the interior of the reinforcing plate 7. The plug-in rod 16 is slidably connected to a limiting member 6. One side of the limiting member 6 is fixedly connected to the support base 2, and the plug-in rod 16 passes through the limiting member 6. The plug-in rod 16 is slidably connected to the reinforcing plate 7. A protective cover 1 is fixedly connected to one side of the reinforcing plate 7. One end of the plug-in rod 16 is fixedly... A rack 5 is fixedly connected, and one side of the rack 5 meshes with a gear 10. A connecting rod 12 is inserted through the inside of the gear 10. The outer ring surface of the connecting rod 12 is fixedly connected to the gear 10, and one end of the gear 10 is rotatably connected to the protective cover 1. The other end of the gear 10 passes through the side wall of the protective cover 1 and is fixedly connected to a positioning member 11. Positioning holes are opened on one side of both the positioning member 11 and the protective cover 1. There are two racks 5 in total. One rack 5 is slidably connected to the inner wall of the protective cover 1, and the other rack 5 is slidably connected to a placement plate 9 on one side. One side of the placement plate 9 is fixedly connected to the inner wall of the protective cover 1.
[0025] By inserting the plug rod 16 into the limiting member 6, the plug rod 16 and the limiting member 6 can be connected. By fixing the plug rod 16 to the rack 5, the rack 5 and the plug rod 16 can move synchronously. The protective cover 1 can support and reinforce the reinforcing plate 7, ensuring the stable installation and use of the reinforcing plate 7. By rotating the connecting rod 12 into the protective cover 1, the gear 10 can be supported when rotating, ensuring the smoothness of the gear 10's rotation. The connecting rod 12 can realize the synchronous rotation of the gear 10 and the positioning member 11. The positioning member 11 can limit the position of the connecting rod 12 and the gear 10, thereby reducing the loosening of the rack 5, ensuring the stable connection between the plug rod 16 and the limiting member 6, and further reducing the loosening after the protective cover 1 and the support base 2 are connected, ensuring the stable connection between the protective cover 1 and the support base 2.
[0026] Example 2: Figures 1-5 As shown, one side of the placement plate 9 is engaged with the circuit board body 3, one side of the circuit board body 3 is engaged with the limiting block 13, one side of the limiting block 13 is rotatably connected to the reinforcing plate 7, one side of the reinforcing plate 7 is fixedly connected with a magnet block 8, one side of the magnet block 8 is magnetically connected with a magnet block 15, the magnet block 15 is embedded in the support base 2, one side of the placement plate 9 is fixedly connected with a plug-in block 14, one side of the plug-in block 14 is plugged into the support base 2, one side of the protective cover 1 is fixedly connected with a sealing ring 4, one side of the sealing ring 4 is engaged with the support base 2, both the protective cover 1 and the support base 2 are provided with a protective coating, one end of the plug-in rod 17 is fixedly connected to the top of the inner cavity of the protective cover 1, and one end of the plug-in rod 17 is plugged into the support base 2.
[0027] The placement plate 9 can support the installation of the circuit board body 3 inside the protective cover 1. The reinforcing plate 7 can also support the installation of the limiting block 13. The limiting block 13 and the reinforcing plate 7 are rotatably connected by a rotating shaft and a torsion spring. The engagement of the limiting block 13 with the circuit board body 3 can limit the installation of the circuit board body 3 on one side of the placement plate 9. The magnetic connection between the first magnet block 8 and the second magnet block 15, as well as the engagement of the plug-in block 14, the second plug-in rod 17 and the support base 2, can guide the installation of the protective cover 1 on the top of the support base 2, reduce the positional deviation of the protective cover 1 during installation, and allow the sealing ring 4 to engage smoothly with the support base 2, sealing and protecting the connection between the protective cover 1 and the support base 2. The protective coating can improve the moisture resistance of the entire device.
[0028] The usage and working principle of this device are as follows: First, install the circuit board body 3 on one side of the placement plate 9. Use the limiting block 13 to engage the circuit board body 3 to limit its position. Then, insert the plug-in block 14 and the second plug-in rod 17 into the support base 2 respectively. During insertion, the first magnet 8 and the second magnet 15 are magnetically connected to ensure a tight connection between the protective cover 1 and the support base 2. At this time, the bottom of the sealing ring 4 is engaged in the support base 2 to seal and protect the connection between the protective cover 1 and the support base 2. Rotate the positioning part 11 on one side of the protective cover 1 to make the connecting rod 12 and the gear 10 move synchronously. The gear 10 drives the two racks 5 to move inside the protective cover 1, extending the first plug-in rod 16 so that the end of the first plug-in rod 16 passes through the reinforcing plate 7 and the protective cover 1 in sequence, and then inserts it into the limiting block 14. Inside the positioning component 6, a pin is inserted into the positioning hole of the positioning component 11 and the protective cover 1 to fix the positioning component 11. The protective coating on the surface of the protective cover 1 and the support base 2 is made of nano-moisture-proof coating. This coating has extremely low surface energy, and water droplets roll in a spherical shape on its surface, making it difficult to adhere. It effectively prevents moisture from adsorbing and penetrating on the surface of the protective cover 1 and the support base 2. When it is necessary to disassemble and repair the circuit board body 3, the positioning component 11 is rotated in the reverse direction to separate the plug rod 16 from the limiting component 6, the protective cover 1 is moved up, the magnet block 8 is separated from the magnet block 15, the plug block 14 and the plug rod 17 are separated from the support base 2, and the circuit board body 3 can be exposed. At this time, the protective cover 1 is inverted to separate the limiting block 13 from the circuit board body 3, and the circuit board body 3 can be taken out for repair.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A moisture-proof double-sided circuit board, comprising a circuit board body (3), wherein a support base (2) is engaged on one side of the circuit board body (3), characterized in that: The top of the support base (2) is equipped with an anti-loosening mechanism, which includes a reinforcing plate (7), a gear (10), and a first insertion rod (16). The first insertion rod (16) is inserted through the inside of the reinforcing plate (7). The first insertion rod (16) is slidably connected to a limiting member (6). One side of the limiting member (6) is fixedly connected to the support base (2), and the first insertion rod (16) passes through the limiting member (6). The first insertion rod (16) is slidably connected to the reinforcing plate (7). A protective cover is fixedly connected to one side of the reinforcing plate (7). (1) A rack (5) is fixedly connected to one end of the plug rod (16). One side of the rack (5) meshes with the gear (10). A connecting rod (12) is inserted through the inside of the gear (10). The outer ring surface of the connecting rod (12) is fixedly connected to the gear (10). One end of the gear (10) is rotatably connected to the protective cover (1). The other end of the gear (10) is fixedly connected to a positioning component (11) after penetrating the side wall of the protective cover (1). Positioning holes are opened on one side of both the positioning component (11) and the protective cover (1).
2. The moisture-proof double-sided circuit board according to claim 1, characterized in that: There are two racks (5). One rack (5) is slidably connected to the inner wall of the protective cover (1), and the other rack (5) is slidably connected to a placement plate (9) on one side. The placement plate (9) is fixedly connected to the inner wall of the protective cover (1) on one side.
3. The moisture-proof double-sided circuit board according to claim 2, characterized in that: The placement plate (9) is engaged with the circuit board body (3) on one side, the circuit board body (3) is engaged with the limit block (13) on one side, and the limit block (13) is rotatably connected to the reinforcing plate (7) on one side.
4. The moisture-proof double-sided circuit board according to claim 1, characterized in that: A magnet block 1 (8) is fixedly connected to one side of the reinforcing plate (7), and a magnet block 2 (15) is magnetically connected to one side of the magnet block 1 (8). The magnet block 2 (15) is embedded in the support base (2).
5. The moisture-proof double-sided circuit board according to claim 3, characterized in that: A plug-in block (14) is fixedly connected to one side of the placement plate (9), and the plug-in block (14) is plugged into the support base (2) on one side.
6. The moisture-proof double-sided circuit board according to claim 1, characterized in that: A sealing ring (4) is fixedly connected to the inner wall of the protective cover (1). One side of the sealing ring (4) is engaged with the support base (2). Both the protective cover (1) and the support base (2) are provided with a protective coating.
7. The moisture-proof double-sided circuit board according to claim 1, characterized in that: The top of the inner cavity of the protective cover (1) is fixedly connected to the second plug rod (17), and one end of the second plug rod (17) is plugged into the support base (2).